Cart



CART

Filed Jan. 27, l939 M I INYENTORS ATTORNEY.

I PatentedFeb. 6; "194150 new v I Wesley JfiMiieller, West and Irving R;I a I Smith, Milwaukee, Wis., tassikgnors Ito Sterling vWheeIbarrow-Company,'-Milwaukee,Wis.,acor- "poration'of WisconsinApplicationjanuary 27; 19:39,:Se1ial N0. 253, 088

- This invention carts; v

Heretofore, :concrete or the like have been'of :a relatively smallstandard size, :such as six fcubic feet 'c'apacity, because cartsoflarge --size have been found difficult to handle and have--generai1yrequired more "than one for idumping; The f -sma1l-carts areobjectionable -"because they only accommodate about one haLlf-of*the'disharge or a standard "concrete: mixer; Attempts have been made tobuild-larger 'car'ts by utilizingoversize wheels with' a; resulting"higher "pivot point for-the "body but the handling-of this type ofcart-has been diflicult. Otherdump carts have beencon structed. whereinit has' been necessary to pivot the cart on its "-nose, in order toe'fiEect cOmpIete dumping and to raise the -whee1s-ofi of the groundduring *such 'dumping, and-the added weight ofthe rwhe'els'has rendered"such "handling "difficultand-tiresome, v a

Furthermore withthe majority o f-carts-of this type thework-m'an hasbeen compelled to hold-the heavy cart :infium'ping position until thecon-j- 125. tentsis entirely discharged. "The"-use.-of oversizewheels'in an attempt 150" provide carts of largercapacity isobjectionable "because standard size rubber tires, such asthosdavailable for standard automobiles --cannot be employed, "and theiurnishingof such carts with rubber tires'o'f special size has raisedthe cost "tozan "excessive amount.

w It is one :of the "objects -of' ,i';l'ie jpresent -invention to"provide aycart having' "small size wheels,

-:relates to improvements -in discharge of a standard "concrete mixer;the-said cart being Q furthermore ftiltable to complete of the ground: if I A further object of the-invention istoprovide acart aspabov'edescribed which is sononstruc'ted that the cart will hold itself inmaximumfiilted position to thereby-relieve '-the" operator from,-supp'orting'-- the load during dumping, and to iurether permit storageof :empty carts iin fsuch'ra eposition that rain "water =wi11not collect:in the 'bOdy. v I

A further object of the' inventionisto provide a .cart as 7 abovej'described, which, when in .dump- ,ing position, may beoption'allygheld by the'work- .manin such position or locke d tornaintam it;. vself at substantially'right angles to normal, 1 ,A morespecific object of the invention :is to ro d 1 sa -t s sb vsdeae-ibedrheem e 4;

the majority or carts rot nan-dune:

ciuding stop's cooperable with the crank shaped parts of the:ax1e,,:said-stops rendering the double qpivo't 'efie'ctive to providefor ico'mplete dumping l on" of the ground.

"complete embodiment 0f the preferred. form 'of and easily operable'"bvfone man, which --cartcan I be furnished in'a sizetoaccommodate theentire in complete fdumpin'g position.

, Referring ":more particularly gcto' I {the numeral 8 :'designates thebodyxportionfform r m said, b d llfh ds o ta d e ei ez siolaims.(crass-+2 p derslungmaxle'; the wwh'eels bein'g rotatable "oncrankrshaped ends of said axle, and the axle being rotatablein'bearingson the bottom of the cart wherebyqzduring dumping, the cartWill'- first tilt on the Wheel iaxis'guntil a. portion strikes the'ground and :thentilt whileiin contact with the ground while the crankshaped axle parts move through :a'ni; arc of substantially ninety de-vrockers for ."facilitating' dumpinglmovement :after t said rockers haveengaged the ground, and 'in- 10f sa cart :of relatively large sizesupported i-upon relatively small wheelsivrithoutlifting said wheelsOtherobjects'ofLtheYinVentiQn are tQ'provide'a I cart whichissimpleta'ndinexpensivein construe tion, neat in appearance,str'ong anddurable, and well adapte'd' forthe purpose-described. 1 I With the aboveand other, objects in View, the invention consists of the improved-'cart andflall its partsgand combinations as set :forth in thezclaimsiandall equivalentsthereo'flf I In the accompanying drawingillustrating onev the invention {in which v the same reference numetalsdesignate'the same parts in allotthe viewsz' 1 f 11S 6TFOIiVVi6W-Ofthe-cart with the bodyv :in normal position;

i Fig. 2Lis a side Viewthereof; part offon'e of thewhels' bein'gbrokenaway; 8 Figj3 is a sidejview,illustrating 'the first part ofdumping movement; I 1

-p'1ete dumping position; andfp, v -Fig. 5 is aside view showing thecart locked the drawing ingv a receptacle for concrete .or other;material. :Said body :is preferably :formed of 'sheet,;metal and,isaprovided with spaced rockerslon the fr ont thereof, with; a t me inproje tin from the rear andjwith legs H forsupporting the bodyinvnormalupright position.-

v v l An .underslung (axle: 112 [extends transversely beneath thevbottom of the body 8 es shown in "Fig. 1 and'is rotatable in-bearings-Hdepending generally crank shaped, and when the body is normal uprightposition, embrace the sides thereof. I 16 of the crank shaped portions,and said wheels "are of relatively small size so that they may beequipped with inexpensivestandard pneumatic 7 rubber tires ll e Weldedorotherwise}: secured/tothe opposite each plate is flanged outwardly as atE9 to forrn' a position to engage the crank shaped portions I Hi if thecart is so overloaded as tocause lateral bulging of the sides.

and-wpreventbinding ofpai-largeareaiof said sides against the crankshaped portions of-the. .axle in casexofoverloadr :Inuseofthecart;itisinormally at the mixer While in the upright-position of Fig.v2, the body being so balanced aswto maintainv itseli 'in the uprightposition oi. Fig. 2,;resting upon the rear legs, l L, .[The cart isthenwheeled to a point of dumping and, the Workman then lifts, upwardly onthe handle IB-to tiltithe .Carttothe position of Fig. 3 until therockersv 9. strikethe ground. Such tilting movement-is on the axis.otthe wheelsibecause. the projections l9 are in engage:-

position that the wheels would normally" have to be elevatedand liftedofi of the ground with thebody. With. the,..present, construction,however. the, wheels remain by gravity on'the ground,

and the crank shaped .portions'lt swingthro-ugh .which ispast' deadcenter, and thebody-willthen .165

w an arc of approximately ninety degrees with respect; tothe bodyand inthe bearings, 13;. In th comp e u p n pos n of, Fig. 4,-there.-

fore, the axle portion 52,115 disposed. directly above the axis of thewheels. It is to be noted that the crank shaped parts Mare of suchlength as to permit the wheels to remainon the round when the bodyisirrthe position of Fig. i;

r After the contents aredischarged ifrom the .body. while in theposition of Fig.4, the operator may immediately tilt the body back tonormal .position.'; However, "ifq he desires to scrapejrnate rial out ofthe cart orpleave' it-in dumpingposi- :tion, the-crank shaped parts {4'areurged from the position of Figy lhto the, position of Fig.v 5,

maintainfitself in the .position of Fig. 5.1 The stops 2%] limitfurther. movement or the crank shaped parts l i-from theposition of Fig.5' and are so spacedfrom theibody as to'p'erinitmOV'eE mentoigthei'crank 'siiap'ee'parts" to the position or Fig-5. 'Ihelcartposition of Fig. 5 ispa'r ticularly desirablefwhei i the cart is beingstored,

because the body is maintained in'suchap'osition'th'at Water willnotcollect therein to cause rust fotner deterioration; x From the aboveitis apparent that due tofthe Wheels I? are rotatable on the extremeends made'by 1t osefs'killed in'the art, and all of such changes"are'cjontemplated as may corne within,

These pads would.necefssarily limit the amount of such bulging possibletacle; wheel-suppo in me s, a wheel otatab y use of thedouble pivot. alarge size body may be supported onrelatively small standard size wheelswhich can be equipped with standarduf pneumatic rubber tires. It is alsoapparent that the cart can be tilted to complete dumpingfiposn 6 tionwithout lifting the added weight of the Wheels making itpo-ssibleforoneman to handle a cartof' large' c'alpacitylv 15 Itjis also apparent thatthe" cart automatically"maintain itself in a u po-sitionat right'anglesto normal, wherebythere 'isno need for /the operator to supportthe'load' during dumping and, whereby the cart may be stored in adesirable position when not inuse. Vario changes and modifications maybe"the -sccipe ofthe claims.

We..claim:

\ 1. In. a cart, a body portion forminga re'cep I mounted each side :of.said supportingiineans "1 With the body therebetween, means forpivo-tally connecting/said ,wheel supporting meanstosaid body:intermediate the ,lengthipf said. body,':the. axis.;of ;saidpivotalconnection. being, below the .axis of saidiwheelswwhcn. the body'isuright, and; 'a projection on the; body; engageable,.with th wh upport nwme nswnen, the. bodyis tilted in a forward direction for causing ,,'the

w ee unp i gm an to more. w ththebod so onth Wheel n i a. o tionnfe,;;hody strikes I the ground the vbody I being further tilt ablewhilein contactwith the-ground, and thedistance betweenthe whe'el axisand. the axis of e rqi l-cqnne i n b tw en-t emes. andt e d n uehiufiheil n .Q e od e 0 1.- 1 su ten ll 1 3 .17 les t e me 2. Ina cart, a bodyportion forming a recepably mounted on; each,, side of saidsupportingmeansv :With. the body thereb'etwe'en, v rnans ftor pivotally connectingsaid jwhe el supporting means to said body intermediate the.lengthoisaid body, theaxis of said pivotal .c0nnection. belowfthe axis of .saidwheels when thebody-is upright l and a projection on the body engage-j aiivith h wheel sup n nan whee th a, body' is .tilt'e din a forwar ddirection ior causing r the wheel supporting means to move 'witlifthebody on the wheel axisuntil the rockersfstrike the ground, the body, ,being f urther, @tiltable. on isaid rockersfand the vc iistancebetweenlthe wheel tween the bodyand wheel-supporting; means I ein; suchas to permit-the. wheels to. remain. by z.

vid-19. trx rou du i 's ehj fa tilt- I ing of the body to a position at.substantiallywo right angles t'o no rrnal. v

-. ae ed e t qe f i e new 6; h l r n .mean e: .w ee re tai b y".mount.ed on-each side of said supporting means I o "bodybeiiigffiirther-tiltablejwhile"in mantra-mi" 35 he ls po mg meansbeing suqhaw-p rmii he rie to remain by. ravi pnih st ned: i

. 4'6}. tacle and having rockers onthe front portion v thereof; wheelsupporting means a wheel rotat ...Q ist" axis-fand the axis of thepivotal connection .be-

the ground and the distance'between the wheel axis and the axis of thepivotal connection between thebody andthe wheel supportingmeans beingsuch as to permit the wheels to remain by gravity on the ground duringsuch further tilting of the body to a position at substantially rightangles to normaLfandJa stop for limiting pivotal movement of the wheelsupporting means with respect to the body after the body has reacheddumping position.

4. In a cart, a body portion forming a receptacle, an axle extendingtransversely of said body beneath an intermediate portion of the bottomthereof and having crank shaped ends normally embracing the sides ofsaid body, a wheel rotatawith respect" to the body until a portion ofthe body strikes the ground, the body being further tiltable while incontact with the ground while the crank shaped ends of the axle movethrough an arc of substantially ninety degrees, the length of said crankshaped endsbeing sufiicient to permit the wheels to remain on the groundduring such movement of the crank shaped ends and during such furthertilting of the body. 7

5. In a cart, a body portion forming a receptacle, an axle extendingtransversely of said body beneath an intermediate portion of the bottomthereof and having crank shaped ends normally embracing the sides ofsaid'body, a wheel rotatable on, each of said crank shaped ends, meansfor pivotally connecting the body to the transversely extending portionof said axle whereby the axis of said connection is below the axis ofthe wheels when the body is upright, a projection on said bodyengageable with a crank shaped end of the axle when the body is beingtilted in a forward direction forv causing the crank shaped ends of theaxle to maintain their normal relationship with respect to the bodyuntil a portion of the body strikes the ground, the body being furthertiltable while in contact with the ground while the crank shaped ends ofthe axle move through an arc of substantially ninety degrees, the lengthof said crank shaped ends being sufficient to permit the Wheels toremain on the ground during such movement of the crank shaped ends andduring such further tilting of the body, and a stop carried by the bodyand engaged by the crank shaped end of the axle for limiting said lastmentioned movement of the crank shaped ends with respect to the body.

'6. In a cart, a body portion forming a receptacle, an axle extendingtransversely of said body beneath an intermediate portion of the bottomthereof and having crank shaped ends normally embracing the sides ofsaidbody, a Wheel rotatable on each of said crank shaped ends, means forpivotally connecting the body to the transversely extending portion ofsaid axle whereby the axis of said connection is below the axis of thewheels when the body is upright, a projection on said body engageablewith a crank shaped end of the axle when the body is being titlted in. aforward direction for causing the crank shaped ends of the axle tomaintain their normal relationship with respect to the body until aportion of the body strikes the ground, the bodybcing further tiltablewhile-in contact with the ground while the crank shaped ends of the axlemove through an arc of substantially ninety degreeat-he length of saidcrank shaped ends being suiiicient to permitjthewheels to remain on theground during 'suchmovement of the crank shaped ends and during suchfurther tilting of the body, and a stop carried by the body and engagedby the crank shaped end of the axle for limiting said last mentionedmovement of the crank shaped ends with respect to the body, said stopbeing so located that the crank may be moved past dead center tomaintain the body in dumping position. '7. In a cart, a body portionforming a receptacle and having rockers on the front portion thereof, anaxle extending transversely of said body beneath an intermediate portionof the bottom thereof and having crank shaped ends normally embracingthe sides of said body, a wheel rotatable oneach of said crank shapedends, means for pivotally connecting the body to the transverselyextending portion of said axle whereby the axis of said connection isbelow the axis of the wheels when the body is upright, and a projectionon said body engageable with a crank shaped end of the axle when thebody is being tilted in a forward direction for causing the crank shapedends .of the axle to maintain their normal relationship with respect tothe body until the rockers strike the ground, the body being furthertiltable on saidrockers while the crank shaped ends of the axle movethrough an arc of substantially ninety degrees, the length of said crankshaped ends being suflicient to permit the wheels to remain on theground during. such movement of the crank shaped ends and during suchfurther tiltingof the body.

8. In a cart, a body portion forming a receptacle and having rockers onthe front portion thereof, an axle extending transversely of said bodybeneath an intermediate portion of the bottom thereof and having crank.shaped ends normally embracing the sides of said body, a wheel rotatableon each of said crank shaped ends, means for pivotally connecting thebody to the transversely extending portion of said axle whereby the axisof, said connection is below the axis of the wheels when the body isupright, .a projection on said body engageable with a crank shaped endof the axle when the body is being tilted in a forward direction forcausing the crank shaped ends of the axle to maintain their normalrelationship. with respect to the body until the rockers strike theground, the body being further tiltable on said rockers while the crankshaped ends of the axle move through an arc of substantially ninetydegrees, the length of said crank shaped ends being sufficient to permitthe wheels to remain on the ground during such movement of the crankshapedends and during such further tilting of the body, and a stopcarried by the body and engaged by the crank shaped end of the axle forlimiting said last mentioned movement of the crank shaped ends withrespect to the body.

9. In a cart, a body portion forming a receptacle, wheelsupportingmeans, a wheel rotatably mounted on-each side of saidsupporting means with the bodytherebetw-een, means for pivotallyconnecting said wheel supporting means to said body intermediate thelength of said body, the axis of said pivotal connection being below theaxis of said wheels when the body is upright, and means causingengagement between the body and the wheel supporting means when the bodyis tilted ina forward direction for causing the wheel supporting meansto move with the body on the wheel axis until a portion of the bodystrikes the ground, the body being further tiltable While in I contactwith the ground, and the distance between the wheel axis and the axis ofthe pivotal connection between the body and the wheel sup- WESLEY'J;MUELLER. IRVING R. SMITH.

